Rotary brush.



110. 741,643. PATEN'IED OCT. 2 0. 1903.

P. G.1FARNHAM. RQTARY BRUSH.

APPLIQATIQK FILED NOV. 6, 1901. RENEWED FEB. 19 1963.

HQUMODBL.

m: Npnms PETERS co. PHOTO-LIYHOY, WASHINGTON, n c,

UNITED STAT S Patented October 20, 1903.

PATENT OFFICE.

ROTARY BRUSH,

SPECIFIGATION forming part of Letters Patent No. 741,643, dated October20, 1903. Application filed November 6, 1901. Renewed February 19, 1903.Serial No. 144,156; (No model.)

To all whom it may concern:

Be it known that I, FRANK GUNN FARNHAM, a citizen of the United States,residing at I-Ionesdale, Pennsylvania, have invented certain new anduseful Improvements in Rotary Brushes, of which the following is aspecification.

My invention relates to improvements'in rotary brushes, and moreparticularly to that class of brushes known to the trade as edge andbreast brushes used by shoe manufacturers to finish the upper edge ofthesole where the stitching shows; but it may apply to metal-polishersand jewelers work. 7

The object of the invention is to provide a simple and effective brushmounted in a durable and economical manner.

The invention is illustrated in the accompanying drawings, in which-Figure 1 is a central vertical section. Fig. 2 is a similar view of amodification, showing the edge brush mounted on the spindle of a largebrush. vFig. 3 is a sectional detail.

The brush itself is generally a small disk brush, as shown at h, and maybe of the ordinary construction and diameter, the invention residing inthe manner of clamping it to spindle being indicated at a.

its support and in the support itself.

Referring more particularly to the drawings, it will be seen that Iemploy, in connec tion with and as a support for the brush and spindle,the form of tube or sleeve patented to me under date of July 2,1901, No.677,502, though I do not limitmyself to this particular form. This tubeor sleeve is shown at a a" and is designed to carry a'main polishingbrush, (not shown,) such as described and shown inmyaforesaid LettersPatent, the split collar by which it is clamped to an operating- Thescrew for clamping the brush in place is shown at b". Within the end ofthe sleeve I insert a nut d, which is clamped by having the end of thesleeve split, as shown, and screwing the clamping-nut or collar 17thereon. A spindle f carries at its outer end a disk g, and on thisspindle is slipped an opposing disk 3', be-

tween which aud the disk or head g the brush 7?. (which has been slippedonto the spindle previous to the disk j) is held. The disks are forcedtoward each other to clamp the brush firmly by encircling the spindle fwith a tube In Fig. 2 I have shown how the edge brush may be mounted onthe sleeve Without removing the main polishing-brush, and in this eventI may, if desired, secure the nut d in the end of the sleeve by brazingor casting,

avoiding the necessity of splitting the sleeve,

and providing a clamping nut or collar.

In using the edge andbreast brush I have found that the workman islikely at times to use the large or main brush as a lever to check themotion of the spindle when disconnected from its driving means. tendencyto unscrew or loosen the nut b and to obviate this I place washers ordisks Z on on opposite sides of the disk and secure a pin cm a lug inthe clamping-collar a, this pin projecting through an opening in thedisk m and into an opening in the brush.

In combination, a rotary support having a threaded portion or'nut, aspindle having a threaded end screwed'in said portion or nut, andcarrying a disk at its outer end, a movable disk on the .spindle, abrush between said disks, and a sleeve encircling the spindle betweenthe nut and movable 'disk, substantially as described. a

In testimony whereof I affix mysignature Witnesses:

NORMAN O. FARNHAM, R0131. A. SMITH.

This has a I v

